Patents by Inventor Hitoshi Oga

Hitoshi Oga has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • LASER DEVICE, EXTREME ULTRAVIOLET LIGHT GENERATION DEVICE, AND METHOD FOR MAINTAINING THE DEVICES
    Publication number: 20110309270
    Abstract: Provided is a laser device which is installed within a predetermined space and on a predetermined floor area, the laser device may includes: a master oscillator; at least one amplifier unit that amplifies a laser beam outputted from the master oscillator; at least one power source unit that supplies excitation energy to the at least one amplifier unit; and a movement mechanism which enables at least one among the at least one amplifier unit and the at least one power source unit to be moved in a direction parallel with a floor surface.
    Type: Application
    Filed: February 16, 2011
    Publication date: December 22, 2011
    Inventors: Yohichi Yamanouchi, Takashi Suganuma, Junichi Fujimoto, Osamu Wakabayashi, Hiroaki Nakarai, Hidenobu Kameda, Hitoshi Oga